Abstract: A mounting device for mounting one end of an expansion card plugged in a circuit board includes a bracket to be mounted on the circuit board, and a mounting member slidably mounted to the bracket. The bracket includes a top plate forming a number of parallel dentate members. The mounting member includes a supporting portion for clamping the end of the expansion card, and a positioning portion adjustable to lock to one of the dentate members for positioning the mounting member relative to the bracket.

Abstract: A fixing assembly for fixing a number of data cables to a motherboard with a number of sockets includes a frame mounted on the motherboard and receiving the sockets, and two blocking members detachably mounted to the frame. The blocking members each include a blocking piece blocking tops of the adjacent connectors, to prevent connectors of the data cables from being disengaged from the corresponding sockets.

Abstract: An electronic device enclosure includes a casing, an air duct mounted in the casing, and a latching member. The air duct includes a receiving bracket formed on the air duct for receiving an uninterruptible power supply module. The latching member is covered on the receiving bracket to position the uninterruptible power supply module. A first side of the latching member is rotatably connected to the receiving bracket, and a second side of the latching member is detachably latched to the receiving bracket.

Abstract: An electronic device includes a chassis and a handle. The chassis includes a side plate. Two first protrusions protrude from the side plate. Each first protrusion includes a neck and a head. The handle includes a main body. The main body includes two opposite end walls, and two mounting portions extending from the end walls. A first hooking slot is defined in each mounting portion. Each first hooking slot includes a first slot, and a second slot communicating with a bottom of the first slot and narrower than the first slot. A resilient tab is fastened to each end wall. A stop tab extends from each resilient tab. The first protrusions are operable to extend through the first slots and move toward the second slots. The necks engage in the second slots. The stop tabs block tops of the heads.

Abstract: An electronic device includes a motherboard defining a number of through holes, a bottom wall forming a number of posts, and a fixing member including a fixing body mounted to the bottom wall and a movable body pivotably mounted to the fixing body. Each through hole includes a first hole and a second hole communicating with each other. Each post includes a supporting portion, a head, and a neck. The fixing body defines a slot. The movable body includes a main portion, a hook, and a projection extending from an end of the main portion. The heads are extended through the first holes. The necks abut against end walls bounding the corresponding second holes. The motherboard is sandwiched between the heads and the supporting portions. The hook is engaged in the slot, and the projection abuts against an end of the motherboard adjacent to the fixing member.

Abstract: A protective cover for a connector includes a non-conductive positioning plate and two non-conductive clamping plates located at two opposite sides of the positioning plate. The positioning plate and the clamping plates bound two positioning slots for receiving pins of the connector.

Abstract: A storage card partition system and a storage card partition method adapted for a mobile phone are disclosed. The system acquires a storage capacity of a storage card in the mobile phone, defines the quantity of partitions, dividing the storage card into the quantity of partitions according to the storage capacity of the storage card, and defining a capacity of each partition, and names each partition to obtain a partition name and defining a relationship between each partition name and at least one suffix name. The system further acquires a suffix name of a file which will be stored to the storage card or has been stored in the storage card and saves the file, based on its suffix, to a corresponding one of the partitions related to the same suffix.

Abstract: A connector position device includes a light emitting diode (LED) and a switch. The LED is fixed facing a connector of a motherboard. An anode of the LED is connected to a power supply; a cathode of the LED is connected to a south bridge chip. The switch is connected to the south bridge chip to control the south bridge chip to output a high level signal or a low level signal. When the switch is turned on, the south bridge chip outputs a low level signal to the cathode of the LED and the LED is lit. When the switch is turned off, the south bridge chip outputs a high level signal to the cathode of the LED and the LED is turned off.

Abstract: An exemplary electronic device includes a mother board, a power source, and a power extending board detachably connected between the power source and the motherboard. The power source includes a golden finger interface. The power extending board includes a receiving socket, a first conversion circuit, and a first connector. The golden finger interface is plugged into the receiving socket. The first conversion circuit is connected to the receiving socket, converts first and second voltages from the power source into third and fourth voltages, and outputs the first, third, and fourth voltages to the motherboard.

Abstract: An electronic device includes a chassis and a handle. The chassis includes a side plate. Two first protrusions protrude from the side plate. Each first protrusion includes a neck and a head. The handle includes a main body. The main body includes two opposite end walls, and two mounting portions extending from the end walls. A first hooking slot is defined in each mounting portion. Each first hooking slot includes a first slot, and a second slot communicating with a bottom of the first slot and narrower than the first slot. A resilient tab is fastened to each end wall. A stop tab extends from each resilient tab. The first protrusions are operable to extend through the first slots and move toward the second slots. The necks engage in the second slots. The stop tabs block tops of the heads.

Abstract: A mounting device for positioning an expansion card includes a positioning apparatus and a slide apparatus. The positioning apparatus includes a positioning case. The positioning case includes a connecting plate and an installing plate extending out from an end of the connecting plate. The slide apparatus includes a slide case slidably connected to the connecting plate and a latching member. The slide case includes a positioning portion facing the installing plate. The latching member is mounted to the positioning portion. The latching member defines a latching slot facing the installing plate. A first end of the expansion card is installed to the installing plate. The slide case is slid relative to the positioning case, until a second end of the expansion card is inserted into and held by the latching slot.

Abstract: A connector includes a frame, a female terminal, a male terminal, and an assistant member. The frame defines a receiving space which having an opening at an end of the frame, and a slot communicating with the slot in a side. The female terminal is permanently received in the receiving space. The male terminal is slidably received in the receiving space. The assistant member extends through the slot and bears on the male terminal to move the male terminal out of or into the receiving space through the opening, to enable the connector to function either as a female connector or as a male connector.

Abstract: An enclosure includes a bottom plate, a cover, a number of parallel sidewalls perpendicularly connected between the bottom plate and the cover, and a backplane perpendicularly mounted to the bottom plate and adjacent to the sidewalls. Each of the sidewalls includes a hook. The backplane defines a number of locking slots for receiving the hooks of the sidewalls. A latch member is secured to the backplane. The latch member includes a locking board which is movable back and forth. The locking board forms a stopping portion and a supporting portion. A tongue extends from a rear side of the cover. When the locking board is moved forwards to a locking position, the stopping portion abuts a rear end of the abutting tab, and the supporting portion abuts a bottom side of the abutting tab.

Abstract: A test card includes a power interface, a controller, a test interface, and a test point. The test interface includes a power pin, a start pin, and a data signal pin. The power interface is connected to the controller and the power pin, and also connected to an external power to receive a work voltage. The controller transmits a turn-on signal to the start pin. The test point is connected to the data signal pin. When an interface of a motherboard is connected to the test interface, the power pin, the start pin, and the data signal pin are connected to corresponding pins of the interface of the motherboard. The motherboard outputs a data signal to the test point through the motherboard interface and the test interface after the controller receives the turn-on signal.

Abstract: A mounting apparatus for fixing a conversion card to a motherboard of a chassis includes a main board defining an opening and an assistant member. The conversion card is mounted to a bottom surface of the main board. Two inserting pieces extend down from opposite ends of the main board to be detachably engaged in the chassis. The assistant member includes a fixing portion mounted to the bottom surface of the main board and a handle pivotably mounted to the fixing portion. The handle includes an abutting portion and an operation portion opposite to the abutting portion. The operation portion is operated up through the opening to pivot the handle. The abutting portion abuts the motherboard to move the mounting apparatus together with the conversion card away from the motherboard.

Abstract: A serial advanced technology attachment dual in-line memory module device includes a capacitor to be tested, a control chip, a display device, a testing chip, and a selecting chip. Voltage pins of the testing chip and the selecting chip are connected to a power source. A testing pin of the testing chip is connected to the capacitor. A first input output (I/O) pin of the selecting chip is connected to a first I/O pin of the testing chip. A second I/O pin of the selecting chip is connected to a second I/O pin of the testing chip. A third I/O pin of the selecting chip is connected to an input pin of the control chip. A fourth I/O pin of the selecting chip is connected to an output pin of the control chip. A fifth I/O pin of the selecting chip is connected to the display device.

Abstract: A serial advanced technology attachment dual-in-line memory module (SATA DIMM) assembly includes a SATA DIMM module with a first circuit board, an expansion slot, and an expansion card with a second circuit board. A first edge connector is arranged on a bottom edge of the first circuit board and includes first power pins connected to a control chip and first storage chips, and first ground pins. A second edge connector is arranged on a top edge of the second circuit board and includes second power pins connected to a power unit, and second ground pins. A third edge connector is arranged on a bottom edge of the second circuit board and includes third power pins connected to the power unit, third ground pins, and signal pins connected to a display unit.

Abstract: A motherboard includes a processor, a platform controller hub (PCH), a switch, a power connector, a switch unit, and an expansion slot. The PCH is connected to the expansion slot to output a bus signal to a serial advanced technology attachment dual in-line memory module (SATA DIMM), which is connected to the expansion slot, in response to the movement of a switch. The processor connected to the processor socket outputs a bus signal to an expansion card, which is connected to the expansion slot, in response to another movement of the switch.

Abstract: A circuit for testing a buzzer includes a microphone, an amplifier circuit, a microprocessor circuit, and a display circuit. The amplifier circuit is configured to amplify an analog signal from the microphone to an amplified signal. The microprocessor circuit determines whether a loudness and a frequency of the amplified signal are within proper ranges. The buzzer is qualified if the loudness and frequency of the amplified signal are within the proper ranges. The display unit displays the loudness, the frequency, and a test result.

Abstract: A serial advanced technology attachment dual-in-line memory module (SATA DIMM) assembly includes a SATA DIMM module with a first circuit board, an expansion slot, and an expansion card with a second circuit board. A first edge connector is arranged on a bottom edge of the first circuit board and includes first power pins connected to a control chip and first storage chips, and first ground pins. A second edge connector connected to the expansion slot is arranged on a top edge of the first circuit board and includes second power pins connected to the first power pins, second ground pins, and four first signal pins connected to the control chip. A third edge connector engaged in the expansion slot is arranged on a bottom edge of the second circuit board and includes third power pins and four second signal pins connected to the second storage chips, and third ground pins.